OpenAI API
GPT-4o and the world's most used AI API
How to Get an OpenAI/ChatGPT API Key - 2026 Updated
Access to GPT-4o, GPT-4o mini, o1, DALL-E 3, Whisper, and Embeddings through OpenAI's industry-standard API.
Pros
- Widest ecosystem support
- Multimodal capabilities
- Best-in-class function calling
Cons
- Data privacy concerns
- Rate limits can be frustrating
Best For
Developers wanting the most widely supported LLM API ecosystem
Pricing
Starter
- Core features
- Email support
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